The Battle of Plassey was a battle that took place on June 23, 1757, on the banks of the Bhagirathi River, about 150 km north of Calcutta.The battle was between Siraj Ud Daulah, the last independent Nawab of Bengal, and the forces of the British East India Company. Siraj-ud-Daulah's army commander had defected to the British, causing his army to collapse. After this defeat, the entire province of Bengal passed to the Company, and this battle is today seen as one of the pivotal battles leading to British Empire in India.The ostensible reason for the battle was Siraj-ud-Daulah's earlier attack and capture of Fort William, Calcutta (which he renamed to Alinagar) during June, 1756, but the battle is today seen as part of the geopolitical ambition of the East India Company and the larger dynamics of colonial conquest.This conflict was precipitated by a number of disputes:The illegal use of Mughal Imperial export trade permits (dastaks) granted to the British in 1717 for engaging in internal trade within India. The British cited this permit as their excuse for not paying taxes to the Bengal Nawab.British interference in the Nawab's court, and particularly their support for one of his aunts, Ghaseti Begum. The son of Ghaseti's treasurer had sought refuge in Fort William and Siraj demanded his return.Additional fortifications with mounted guns had been placed on Fort William without the consent of the Nawab, and;Their policy of favouring Hindu Marwari merchants such as Jagat Sheth .